Sorry what I should have said is has anyone tried it (short stack) on a 1/10 2wd buggy, if so how does it perform compared to the d4 certified 17.5 motors. I heard the short stack was super fast and its $50 cheaper.

i believe the R1 wurks motor is a short stack design, so it's not like it's unheard of to run one in a 1/10 off road application.

just when i thought i was going to get out of 17.5 racing, i may get back in. i might pick up a short stack motor.

I will be running my D4 1S Certified tomorrow (weather permitting).
$50 cheaper? The D4 and D4 1S are the same price. The price difference is if it is certified, both the D4 and D4 1S certified's are $149.

All you need to do is turn the end bell to the specific timing you'd like to run, and then tighten them.

Gene, I will have my 1s certified motor Monday, and can not wait to try it. I've only heard good things about them.

I actually just linked the normal d4 1s short stack vs the d4 certified. Question was is the new short stack (non certified) vs the d4 certified worth the $50 sorry for not clarifying

Apples to oranges.

The certified motor is literally the top 5% of motors available...The regular D4 or short stack non certified isn't a fair comparison.

You need to compare the short stock certified to the D4 certified, and my response would be it depends on the application.

OK...I'm kinda interested in the D4, so I'll call up an application. D4 17.5 vs. Maxzilla vs. short stack. Non-certified, plain-jane motors. Indoor carpet offroad, 2wd. Occasional use on outdoor once things thaw out and dry up.

What are the benefits of the short stack over the other two? I've about settled on a Maxzilla, but if there are advantages to the short stack...

Byrdman

Just to be candid here, I can't comment on the short stack motor. It's new, and mine will be here Monday.

The claim for the short stack 1s motor, is that they're lower IR, more RPM, and don't give up much torque to do this.

The D4 is the base motor, and is great all around. The Maxzilla is my "old and trusty" for 2WD offroad, and I right now run a certified maxzilla and couldn't be happier.

The new short stack motor should be perfect in a 2wd buggy, and if you're a front pack person, then the certified motor is a must have.

I have both the D4 (not-certified) and the D4 1S (Certified). Out of the box observations:

1) the timing on the D4 is set to 30*, the D4 1S (certified) is set to 60*!
2) The magnet strength is noticably stronger on the Short Stack.
3) Throttle response/rpm at home on the stand is noticable.

Hopefully I will run the D4 1S tomorrow, I won't be able to run the D4. Had some motor issues (my fault) and sent the motor back to be checked out since it was brand new. I will have the D4 motor back soon and will be able to compare.

BTW, the D4 1S short stack is listed as a Maxzilla on the Trinity Web Site.

Another BTW. I sent the motor insured from CA to FL on Monday, Thursday I was called by the Trinity Tech and they had the motor fixed and ready to send back. They needed my Credit Card to bill me :-(, but since they are closed on Fridays I wasn't able to contact them in time. So it will be Monday before it can be sent back.

The magnet strength on the SS motor is not any stronger then the stock motor, same magnets, 1 less lamination on the stack. Any difference you feel is likely due to the rotor inside.

Don't buy into what the stock timing setting means, it just means that's where someone screwed it down. You are going to watch to adjust that for your own application (and that statement applies to anyone)

Realistically you are going to see a 400-500rpm gain with a slight loss in torque in these new SS motors. Whether that's worth it or not in offroad is still to be seen. However, some of the Trinity factory guys have been running the regular D4 in Touring Car applications.

got my 17.5 certified motor today, was super excited to install in the sct sc6. first run really impressed, but only ran for about 3 min checked the heat and at 127 thought I was ok. So I left my stock spur and 28 pinion in and l went out for the second run. About the 4 min mark I noticed a super draw in power, but kept it going for another min, and wow 187 degrees WTF. Dropped three in the pinion and ran for 7 min with the temp at 160WTF again. Decided to drop two more teeth and 5 min run 147 degrees, which I can live with except now im just as slow as a 75 dollar motor. Is anyone having issues. The box timing is 55.

Wow, 23T pinion? I run 24T with a 13.5T. That's a shame, keep us updated. Was looking at getting one of the certified motors.

The screws actually came out while bench testing...

Mid motor or rear motor?

What spur gear?

With my certified maxzilla in my sc10.2, I ended up at 23x78, and the motor was a rocket. I would come off the track around 135 degrees after the 8 minute main.

This motor came set at 58 degrees of timing and I left it. For practic3, I backed timing off to 45, then went up a tooth on the punion and was really happy.